19691504

素因数分解:

$2^4\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1613}}^1$

素因数の和:1737

約数の個数: 40

約数和(自身を含む): 44029920

約数和(自身を除く): 24338416

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 109, 112, 218, 436, 763, 872, 1526, 1613, 1744, 3052, 3226, 6104, 6452, 11291, 12208, 12904, 22582, 25808, 45164, 90328, 175817, 180656, 351634, 703268, 1230719, 1406536, 2461438, 2813072, 4922876, 9845752, 19691504]

約数ペア:

[(1, 19691504), (2, 9845752), (4, 4922876), (7, 2813072), (8, 2461438), (14, 1406536), (16, 1230719), (28, 703268), (56, 351634), (109, 180656), (112, 175817), (218, 90328), (436, 45164), (763, 25808), (872, 22582), (1526, 12904), (1613, 12208), (1744, 11291), (3052, 6452), (3226, 6104)]